Question

我想做的是每10秒后暂停一次视频视频应在10秒后暂停，直到视频结束

下面给出的代码给出了意想不到的结果视频在第一时间暂停（即10秒后）但是当我再次上场时它应该在10s后暂停，但在我的情况下，它有时会在8s，3s 5s等时间内随机停顿我该怎么办？？请帮忙谢谢！

void PlayClick(object sender, EventArgs e)
{
             VideoControl.Play();
            var dispatcherTimer = new System.Windows.Threading.DispatcherTimer();
            dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);
            dispatcherTimer.Interval = new TimeSpan(0, 0, 10);
            dispatcherTimer.Start();
 }

 private void dispatcherTimer_Tick(object sender, EventArgs e)
        {

            VideoControl.Pause();
        }

Answer 1

在dispatcherTimer_Tick-Method：
中添加此项
```
dispatcherTimer.Stop();
```

将以下部分移动到构造函数中：

dispatcherTimer = new System.Windows.Threading.DispatcherTimer();
dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);
dispatcherTimer.Interval = new TimeSpan(0, 0, 10);

将DispatcherTimer设为全局变量。

编辑：这应该是什么样子：

    class MyClass
    {
        private DispatcherTimer _dispatcherTimer; //now your dispatcherTimer is accessible everywhere in this class

        public MyClass()
        {
            _dispatcherTimer = new DispatcherTimer();
            _dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);
            _dispatcherTimer.Interval = new TimeSpan(0, 0, 10);
        }

        void PlayClick(object sender, EventArgs e)
        {
            VideoControl.Play();
            _dispatcherTimer.Start();
        }

        void dispatcherTimer_Tick(object Sender, EventArgs e)
        {
            _dispatcherTimer.Stop();
            VideoControl.Pause();
        }
    }

Answer 2

将定时器的声明输出到私有类变量中，将几行移动到类的构造函数中，并在Tick处理程序中停止计时器。

您不想继续创建计时器的原因是因为计时器涉及非托管资源，因此您正在关闭该循环。

private dispatcherTimer = new System.Windows.Threading.DispatcherTimer(); 

ctor
{
    dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick); 
    dispatcherTimer.Interval = new TimeSpan(0, 0, 10); 
}

void PlayClick(object sender, EventArgs e) 
{ 
    VideoControl.Play(); 
    dispatcherTimer.Start(); 
} 

private void dispatcherTimer_Tick(object sender, EventArgs e) 
{ 
    dispatchTimer.Stop();
    VideoControl.Pause(); 
}

Answer 3

尝试使用Tick事件中的以下代码：

private void dispatcherTimer_Tick(object sender, EventArgs e)
    { 
        (sender as DispatcherTimer).Stop();
        VideoControl.Pause();
    }

您可以在Playclick事件之外设置dispatcherTimer个对象，并且只能通过以下方式将Start()方法放入PlayClick个事件中：

var dispatcherTimer = new System.Windows.Threading.DispatcherTimer();
public Form1() //// form constructor where you are handling these all event....
{
     dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);
     dispatcherTimer.Interval = new TimeSpan(0, 0, 10);
}

void PlayClick(object sender, EventArgs e)
{
            VideoControl.Play();
            dispatcherTimer .Start();
}

在c＃中每隔10秒暂停一次视频

3 个答案: